Long films stay fast
A two-hour film never gets uploaded anywhere. It is read straight from your disk, so length costs you nothing but the time your computer spends generating it.
Edit first-time-watching movie reactions in your browser. Line your facecam up with the film, pick a layout, and let the editor cut between watching and talking automatically. The film is just the content track: the editor works the same with anything you play.
A two-hour film never gets uploaded anywhere. It is read straight from your disk, so length costs you nothing but the time your computer spends generating it.
Video-first mode keeps the video full-screen with your face in a corner shape while you watch, then swaps to a bigger you the moment you start talking.
A first watch runs long, and long videos live or die on how easy they are to follow. That is what the timeline is for.
A feature-length first-watch shows a lot of the original, which is exactly what Content ID flags. You-first lets you keep the film in a smaller, dimmable window while you stay the focus. It is the safest way to react to a whole movie.
Try this setupYou-first above is just where we'd start, not a rule. Every mode and every control works on any project, and most creators mix them. Here is the main alternative, spelled out the same way, plus the levers you have, so you can pick what fits the video in front of you.
Prefer it cinematic? Video-first keeps the film full-screen with your camera in a corner shape, then swaps to a bigger you the moment you talk. It shows more of the original, so if a video ever gets claimed, lean on more frequent cuts to your camera.
Try Video-first insteadKeep a single look the whole way, or switch to a second one the moment you talk. That highlight look is optional on every project.
Drop your own image over the video at about half opacity and stretch it down just to the subtitle line. Less original shows, and the dialogue stays readable.
Two sliders set how eagerly it cuts to your camera, from heavy to none, and you can change or delete any single cut by hand.
Identical for every kind of video: two recordings in, one finished reaction out.
Generating gives you the finished final.mp4, and, if you want to keep going, the three full-length files it was built from (the whole film in each look) plus a timeline (EDL, FCPXML, OTIO or CSV) for DaVinci Resolve, Premiere or Final Cut. Cut it your own way, or import the timeline to rebuild this exact edit. Nothing to re-render.
Movies carry the strongest Content ID fingerprints, and a first-watch runs long, so risk is highest here. If you want it to look cinematic, use Video-first but cut to yourself often and keep real commentary going. If a claim would hurt, switch to You-first: shrink the film window, fade it toward barely-visible during quiet stretches, and lay an overlay over it. You decide how much of the film ever appears.
Remember the overlay lever too: you can lay your own image over the film at about half opacity, reaching down only to the subtitle line. It is a strong, simple way to show less of the original on film footage while keeping the dialogue readable.
These are ways to lower the odds, not a guarantee. ReactionCut supplies no footage and never uploads yours. Reaction videos rely on fair use or fair dealing, judged case by case, and Content ID can flag a video regardless. You publish at your own risk, and this is not legal advice. More in the guide →
1 credit = 1 finished video. You spend it by pressing Generate in the editor, and only if that generation actually finishes. A cancelled or failed one costs nothing, and re-cutting or saving that same video again is free. Everything else (editing, syncing, previewing, and exporting with a watermark) never costs a credit. No subscription.
Free to edit, free to try, nothing uploaded.
Open the editor